.navbar-default .navbar-nav>li>a:focus,
.navbar-default .navbar-nav>li>a:hover {
	color: black;
	color: #428bca;
}
.navbar-default .navbar-brand,
.navbar-default .navbar-nav>li>a {
	color: #fff;
}
.navbar,
.navbar-default {
	background-color: rgb(0, 0, 0);
	border: 1px solid rgba(255, 255, 255, 0);
	margin:0px;
}
.navbar-default .navbar-toggle .icon-bar {
	background-color: #fff;
}
.navbar-form {
	border-color: rgba(33, 72, 102, 1);
}

.thumbnail{	
	height: 400px;
	border-radius: 0px;
	padding:0px;
}

.vsc-initialized{
	background-color:#2F454E;
}

.jumbotron{
	background-image:url(../img/ship.jpeg);
	background-repeat:no-repeat;
	background-size:100% 100%;
	text-align: center;
	color: #fff;
	text-shadow:4px 4px 10px #000000;
}
.teacher{
	max-height: 300px;
	min-height: 300px;
	background-size:100% ;
	background-position: 50% 0px;
}
.teachers{
	padding:10px;
}

.ad{
	height: 30px;
}

.ad>h5:nth-child(1){
	color:white;
	padding: auto;
	width: auto;
	float: left;
}

.ad>h5:nth-child(2){
	color:white;
	padding: auto;
	width: auto;
	float: right;
}
.class{
	min-height: 80px;
	background-size:100% auto;
	background-position: 50% 0px;
}

.form-control{
	width: 200px;
}
.table{
	color:#fff;
}
.teacher，.class{
	box-shadow: 4px 4px 10px #ffffff;
}